Ruby/Statement/upto

1.upto(12) { |i| 1.upto(12) { |j| print i.to_s + " x " + j.to_s + " = ", j * i,
"\n"} }

1.upto(12) { |i| print "2 x " + i.to_s + " = ", i * 2, "\n"}

array = ["junk", "junk", "junk", "val1", "val2"]
3.upto(array.length-1) { |i| puts "Value #{array[i]}" }
# Value val1
# Value val2

require "date"
the_first = Date.new(2004, 1, 1)
the_fifth = Date.new(2004, 1, 5)
the_first.upto(the_fifth) { |x| puts x }

# The upto method is a convenience method that does the same thing as a for loop
# The Integer, String, and Date classes all have upto methods
for i in 1..10
  print i, " "
end
# => 1 2 3 4 5 6 7 8 9 10
 
# Compare this with upto, which does exactly the same thing:
1.upto(10) { |i| print i, " " } # => 1 2 3 4 5 6 7 8 9 10

1.upto 3 do |x|
  puts x
end
# 1
# 2
# 3
1.upto(3) { |x| puts x }
# 1
# 2
# 3

fruits = ["peaches", "pumpkins", "apples", "oranges"]
 
print "We offer "
 
0.upto(fruits.length - 1) do |loop_index|
  print fruits[loop_index] + " "
end

fruits = ["peaches", "pumpkins", "apples", "oranges"]
0.upto(fruits.length - 1) { |loop_index|
  print fruits[loop_index] + " "
}

fruits = ["peaches", "pumpkins", "apples", "oranges"]
0.upto(fruits.length - 1) do |loop_index|
  print fruits[loop_index] + " "
end

grades = [88, 99, 73, 56, 87, 64]
sum = 0
0.upto(grades.length - 1) do |loop_index|
  sum += grades[loop_index]
end
average = sum / grades.length
puts average